<template>
  <div class="editor—wrapper">
    <Toolbar class="toolbar-container" :editor="editorRef" :defaultConfig="toolbarConfig" />
    <Editor
      :style="styleName"
      v-model="valueHtml"
      :defaultConfig="editorConfig"
      @onChange="onChange"
      @onCreated="handleCreated"
    />
  </div>
</template>

<script setup>
import '@wangeditor/editor/dist/css/style.css'; // 引入 css
import { Editor, Toolbar } from '@wangeditor/editor-for-vue';

const emit = defineEmits();
const props = defineProps({
  placeholder: String,
  modelValue: String,
  minRows: [String, Number],
});
const styleName = computed(() => {
  return {
    height: props.minRows * 50 + 'px',
  };
});
// 编辑器实例，必须用 shallowRef
const editorRef = shallowRef();

// 内容 HTML
const valueHtml = ref(props.modelValue);

onMounted(() => {
  valueHtml.value = props.modelValue;
});
const toolbarConfig = {};
const editorConfig = { placeholder: props.placeholder };

// 组件销毁时，也及时销毁编辑器
onBeforeUnmount(() => {
  const editor = editorRef.value;
  if (editor == null) return;
  editor.destroy();
});
watch(
  () => props.modelValue,
  val => {
    valueHtml.value = val;
  }
);
const onChange = editor => {
  emit('update:modelValue', valueHtml.value);
};
const handleCreated = editor => {
  editorRef.value = editor; // 记录 editor 实例，重要！
};
</script>

<style>
.editor—wrapper {
  border: 1px solid #ccc;
}

.toolbar-container {
  border-bottom: 1px solid #ccc;
}
</style>
